Cognomen Ologu (Ologu 
) , globally, is quite a rare last name. The cognomen Ologu is habitual in Romania, where it is quite a rare surname, North Macedonia, and Nigeria, where it is a rare surname. Much less frequently, Ologu is the forename as well as the last name.
| vasilică ologu Romanian politician from Dârvari, Mehedinți County, RO |
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| alexandru ologu Romanian footballer, RO (b. 1989) |
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